CST - Thornproof Tube - 27.5 x 1.9/2.125 - SV 48mm

CST’s Thorn Resistant bicycle tube keeps out even the worst thorns and sharp debris.

•  27.5 x 1.90/2.125 SV
•  3.6mm wall thickness
•  Great for commuters
•  Schrader Valve 30mm